Method and apparatus for wireless communication

Abstract

A method and apparatus for wireless communication are provided. The method comprises the following steps: a terminal device sends first information, wherein the first information is used for requesting a network device to send SIB1; the terminal device monitors a first control signaling in a first time window; wherein the first control signaling is used for instructing the terminal device to receive the SIB1, the configuration parameter of the first time window is carried in the configuration information of the first information and / or a first response, and the first response is feedback performed by the network device for the first information.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and device for wireless communication. Background Art

[0002] In order to achieve network energy saving, the network device can send the system information block (SIB) 1 after receiving the request of the terminal device to reduce unnecessary SIB1 transmission and associated monitoring. However, after the terminal device requests the network device to send SIB1, how the network device transmits the on-demand SIB1 and how the terminal device receives the on-demand SIB1 are technical problems that need to be solved urgently. Summary of the invention

[0003] The present application provides a method and apparatus for wireless communication. Various aspects involved in the embodiments of the present application are introduced below.

[0004] In a first aspect, a method for wireless communication is provided, comprising: a terminal device sends first information, wherein the first information is used to request a network device to send SIB1; the terminal device monitors a first control signaling within a first time window; wherein the first control signaling is used to instruct the terminal device to receive the SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or a first response, and the first response is feedback from the network device in response to the first information.

[0005] In a second aspect, a method for wireless communication is provided, including: a network device receives first information, wherein the first information is used by a terminal device to request SIB1; the network device sends a first control signaling within a first time window; wherein the first control signaling is used to instruct the terminal device to receive the SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or a first response, and the first response is feedback from the network device in response to the first information.

[0006] According to a third aspect, a device for wireless communication is provided, which is a terminal device, and comprises: a receiving unit, used to receive first information, wherein the first information is used by the terminal device to request SIB1; a sending unit, used to send a first control signaling within a first time window; wherein the first control signaling is used to instruct the terminal device to receive the SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or a first response, and the first response is feedback from the network device in response to the first information.

[0007] In a fourth aspect, a device for wireless communication is provided, which is a network device, and includes: a receiving unit, used to receive first information, wherein the first information is used by the terminal device to request SIB1; a sending unit, used to send a first control signaling within a first time window; wherein the first control signaling is used to instruct the terminal device to receive the SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or a first response, and the first response is feedback from the network device in response to the first information.

[0008] In a fifth aspect, a communication device is provided, comprising a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method described in the first aspect or the second aspect.

[0009] In a sixth aspect, a device is provided, comprising a processor, configured to call a program from a memory to execute the method described in the first aspect or the second aspect.

[0010] In a seventh aspect, a chip is provided, comprising a processor for calling a program from a memory so that a device equipped with the chip executes the method described in the first aspect or the second aspect.

[0011] In an eighth aspect, a computer-readable storage medium is provided, on which a program is stored, wherein the program enables a computer to execute the method as described in the first aspect or the second aspect.

[0012] According to a ninth aspect, a computer program product is provided, comprising a program, wherein the program enables a computer to execute the method described in the first aspect or the second aspect.

[0013] In a tenth aspect, a computer program is provided, wherein the computer program enables a computer to execute the method as described in the first aspect or the second aspect.

[0014] The terminal device in the embodiment of the present application requests the network device to send SIB1 through the first information, and then listens to the first control signaling indicating the SIB1 transmission time in the first time window. The configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response corresponding to the first information. It can be seen that after receiving the configuration information of the first information or the response information of the first information, the terminal device can determine the position of the first time window, so as to receive SIB1 in time. The network device can dynamically adjust the sending time of SIB1 according to the number of terminal devices sending SIB1 requests, which helps to improve system performance on the basis of achieving network energy saving. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a wireless communication system applied in the embodiments of the present application.

[0016] Figure 2 It is a schematic diagram of the network architecture applied in the embodiment of the present application.

[0017] Figure 3A and Figure 3B It is a schematic diagram of the structure of the wireless protocol stack used in the embodiment of the present application.

[0018] Figure 4 It is a structural diagram of on-demand SIB1 transmission of a cell based on a wake-up signal.

[0019] Figure 5 It is a flowchart of a method for wireless communication provided in an embodiment of the present application.

[0020] Figure 6 yes Figure 5 A schematic diagram of a possible implementation manner of repeatedly sending the first information in the method shown.

[0021] Figure 7 yes Figure 5 A schematic diagram of another possible implementation of repeatedly sending the first information in the method shown.

[0022] Figure 8 yes Figure 5 A schematic diagram of a possible implementation of the method shown.

[0023] Fig. 9 yes Figure 5 A schematic diagram of another possible implementation of the method shown.

[0024] Fig.10 yes Figure 5 A schematic diagram of yet another possible implementation of the method shown.

[0025] Fig.11 yes Figure 5 A schematic diagram of yet another possible implementation of the method shown.

[0026] Fig.12 It is a structural diagram of a device for wireless communication provided in an embodiment of the present application.

[0027] Fig.13 It is a structural diagram of another device for wireless communication provided in an embodiment of the present application.

[0028] Fig.14 It is a structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments.

[0030] The embodiments of the present application can be applied to various communication systems. For example, the embodiments of the present application can be applied to the global system of mobile communication (GSM) system, the code division multiple access (CDMA) system, the wideband code division multiple access (WCDMA) system, the general packet radio service (GPRS) system, etc. For another example, the embodiments of the present application can be applied to the long term evolution (LTE) system, the enhanced long term evolution (LTE-A) system, the fifth generation (5G) communication system or the new radio (NR) system, the evolution system of the NR system, the LTE-based access to unlicensed spectrum (LTE-U) system on the unlicensed spectrum, the NR-based access to unlicensed spectrum (NR-U) system on the unlicensed spectrum, the universal mobile telecommunication system (UMTS), the wireless local area network (WLAN) system, and the wireless fidelity (WiFi) system. The embodiments of the present application may also be applied to other communication systems, such as a sixth-generation (6G) communication system, or a future communication system such as a satellite communication system.

[0031] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can not only support traditional cellular communications, but also support one or more other types of communications. For example, a communication system can support one or more of the following communications: device to device (D2D) communication, machine to machine (M2M) communication, machine type communication (MTC), enhanced machine type communication (eMTC), vehicle to vehicle (V2V) communication, and vehicle to everything (V2X) communication, etc. The embodiments of the present application can also be applied to communication systems that support the above communication methods.

[0032] The communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, or a standalone (SA) networking scenario.

[0033] The communication system in the embodiment of the present application can be applied to an unlicensed spectrum. The unlicensed spectrum can also be considered as a shared spectrum. Alternatively, the communication system in the embodiment of the present application can also be applied to an authorized spectrum. The authorized spectrum can also be considered as a dedicated spectrum.

[0034] The embodiments of the present application can be applied to a non-terrestrial network (NTN) system. As an example, the NTN system can be a 4G-based NTN system, a NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0035] The communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0036] In some embodiments, the terminal device may be a station (STATION, ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, a cordless phone, a session initiation protocol (SIP) phone, a wireless local loop (WLL) station, a personal digital assistant (PDA) device, a handheld device with wireless communication function, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system (such as an NR system), or a terminal device in a future-evolved public land mobile network (PLMN) network, etc.

[0037] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, a vehicle-mounted device, etc. with a wireless connection function. As some specific examples, the terminal device may be a mobile phone, a tablet computer (Pad), a laptop computer, a PDA, a camera device, a mobile Internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc.

[0038] In some embodiments, the terminal device can be deployed on land. For example, the terminal device can be deployed indoors or outdoors. In some embodiments, the terminal device can be deployed on the water, such as on a ship. In some embodiments, the terminal device can be deployed in the air, such as on an airplane, a balloon, and a satellite.

[0039] In addition to the terminal device, the communication system may also include one or more network devices. The network device in the embodiment of the present application may be a device for communicating with the terminal device, and the network device may also be referred to as an access network device or a radio access network device. The network device may be, for example, a base station. The network device in the embodiment of the present application may refer to a radio access network (RAN) node (or device) that accesses the terminal device to a wireless network. Base station can broadly cover various names as follows, or replace with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point (AP), transmission point (TRP), transmission point (TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. The base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs the base station function in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs the base station function in a future communication system. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network device.

[0040] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0041] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0042] As an example but not limitation, in the embodiments of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. In some embodiments of the present application, the network device may be a satellite or a balloon station. In some embodiments of the present application, the network device may also be a base station set up in a location such as land or water.

[0043] In an embodiment of the present application, a network device may provide services for a cell, and a terminal device may communicate with the network device through transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell may be a cell corresponding to a network device (e.g., a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0044] For example, Figure 1 A schematic diagram of the architecture of a wireless communication system provided in an embodiment of the present application. Figure 1 The wireless communication system 100 shown includes a network device and multiple terminal devices. The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located in the coverage area. Figure 1 Terminal devices 120a to terminal devices 120j in.

[0045] Optionally, Figure 1 The wireless communication system 100 shown may also include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0046] In the embodiments of the present application, Figure 1 The communication system shown may also include multiple network entities, which is not limited in the embodiments of the present application.

[0047] For example, Figure 2 A schematic diagram of a network structure for applying an embodiment of the present application. Figure 2The network architecture 200 is the network architecture of the 5GNR / LTE / LTE-A system. The network architecture of 5G NR / LTE / LTE-A can also be called the 5G system (5G system, 5GS) / evolved packet system (evolved packet system, EPS) network architecture. The network architecture 200 includes a network device 110, a terminal device 120, a 5G core network (5G core network, 5GC) / evolved packet core (evolved packet core, EPC) 210, a home subscriber server (home subscriber server, HSS) / unified data management (unified data management, UDM) 220 and at least one of the Internet service 230. Figure 2 The network device and terminal device in the figure are illustrated by taking RAN and UE as examples respectively.

[0048] like Figure 2As shown, the network device 110 provides user plane protocol and control plane protocol termination towards the terminal device 120. The network device 110 is connected to the 5GC / EPC210 via the S1 / NG interface. The 5GC / EPC210 includes a mobility management entity (MME) / authentication management field (AMF) / session management function (SMF) 211, other MME / AMF / SMF214, a service gateway (S-GW) / user plane function (UPF) 212 and a packet data network gateway (P-GW) / UPF213. MME / AMF / SMF211 is a control node that handles signaling between the terminal device 120 and the 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user internet protocol (IP) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet services 230. Internet services 230 include operator-specific Internet protocol services, which may specifically include the Internet, intranet, IP multimedia subsystem (IMS), and packet-switched streaming services. It can be seen that network architecture 200 provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services or other cellular networks.

[0049] Figure 3A and Figure 3B The schematic diagrams of the structures of the wireless protocol stacks applying the embodiments of the present application are respectively shown. Figure 3A and Figure 3B The 5G wireless protocol stack is used as an example for introduction. The 5G wireless protocol stack is divided into two planes: the user plane (UP) protocol stack and the control plane (CP) protocol stack. The user plane protocol stack is the protocol cluster used for user data transmission, and the control plane protocol stack is the protocol cluster used for control signaling transmission of the 5G system. The names of the layers of each protocol stack are as follows:

[0050] like Figure 3AAs shown, the user plane protocol stack includes, from top to bottom, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical (PHY) layer.

[0051] like Figure 3B As shown, the control plane protocol stack includes, from top to bottom: non-access stratum (NAS); radio resource control (RRC) layer, PDCP layer, RLC layer, MAC layer and PHY layer.

[0052] It should be understood that different layers in the above protocol stack have different functions, and the communication function between the terminal device and the network device is realized through the interaction between the layers. With the development of artificial intelligence technology, artificial intelligence-assisted computing functions have penetrated into the processing implementation methods of the above protocol stack. For example, the scheduling algorithm of the MAC layer and the encoding and decoding algorithm of the PHY layer can apply artificial intelligence algorithms to improve the performance of the communication algorithm.

[0053] As an example, Figure 3A and Figure 3B The wireless protocol architecture in is applicable to the terminal device in this application, such as UE.

[0054] As an example, Figure 3A and Figure 3B The wireless protocol architecture in the present invention is applicable to the network devices in this application, such as gNB.

[0055] It should be understood that the device with communication function in the network / system in the embodiment of the present application can be referred to as a communication device. The interpretation of the terminology in the embodiment of the present application can refer to the specification protocols TS36 series, TS37 series and TS38 series of the third generation partnership project (3GPP), and of course, the specification protocols of the Institute of Electrical and Electronics Engineers (IEEE) can also be referred to.

[0056] For ease of understanding, some relevant technical knowledge involved in the embodiments of the present application is first introduced. The following related technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application. The embodiments of the present application include at least part of the following contents.

[0057] With the development of mobile communication technology, the new generation of wireless evolution systems (for example, 5G systems) use a variety of technologies to increase the data transmission rate to meet the transmission requirements of large amounts of data such as high-definition video and virtual reality. Various technologies such as large-scale multiple-input multiple-output (MIMO) technology, non-orthogonal multiple access technology, simultaneous full-duplex communication technology, new modulation technology, new coding technology, and high-order modulation technology. Through these technologies, the peak rate can reach the standard of Gbit / s.

[0058] As an example, the latency level of the air interface needs to be around 1ms to meet real-time applications such as autonomous driving and telemedicine.

[0059] As an example, ultra-large network capacity can provide connectivity for hundreds of billions of devices, thus meeting the communication needs of the Internet of Things.

[0060] As an example, the spectrum efficiency of the NR system is more than 10 times higher than that of the LTE system. Based on continuous wide-area coverage and high mobility, the user experience rate can reach 100Mbit / s. It can be seen that the traffic density and connection density have been greatly improved.

[0061] In addition, the improvement of system coordination and intelligence has further improved the flexibility of the network. System coordination can be manifested as multi-user, multi-point, multi-antenna, and multi-input coordinated networking. Based on coordination and intelligence, networks can be flexibly and automatically adjusted.

[0062] However, in a communication system, the power consumption of network equipment (for example, base station equipment) is usually high. In order to save the power consumption of the base station equipment, it is necessary to optimize the system message. For ease of understanding, the following is an example of NR system message.

[0063] NR system messages can be divided into master information block (MIB) messages and some SIB messages. MIB messages are usually sent on the broadcast channel (BCH). The MIB transmission period is 80ms. MIB can be sent repeatedly within the 80ms period. In addition, the MIB message also includes the parameters required by the terminal device to obtain the SIB1 message from the cell.

[0064] The SIB1 message can also be called a SIB type 1 message. SIB1 is transmitted on the downlink shared channel (DL-SCH) with a period of 160ms. Within 160ms, SIB can also be repeatedly sent with a variable transmission repetition period. The default transmission repetition period of SIB1 is 20ms, and the actual transmission repetition period depends on the network implementation. For example, for the multiplexing mode 1 of the synchronization signal block (SSB) and the control resource set (CORESET), the transmission repetition period of SIB1 is 20ms. For another example, for the multiplexing mode 2 / 3 of SSB and CORESET, the transmission repetition period of SIB1 is the same as that of SSB.

[0065] In the embodiment of the present application, SSB may also represent a synchronization signal / physical broadcast channel block (synchronizationsignal and PBCH block).

[0066] SIB1 can carry key information required for terminal devices to access the cell, such as random access parameters. SIB1 also includes information related to the availability and scheduling of other SIBs, such as mapping of other SIBs to system information (SI) messages, periodicity, SI window size, etc. SIB1 can also indicate whether one or more SIBs are provided only on demand, in which case SIB1 can also provide the physical random access channel (PRACH) configuration required by the terminal device to request the SI required by the terminal device. SIB1 also contains radio resource configuration information common to all terminal devices and cell barring information applied to unified access control.

[0067] When SIB1 includes relevant information about other SIBs, other SIB messages may be provided through periodic broadcast or on-demand. If other SIBs are provided on-demand, SIB1 may also include information for the terminal device to perform SI requests.

[0068] SIB messages other than SIB1 (other SIBs) can be included in the SI message. These messages can also be transmitted on DL-SCH. Each SI message can be transmitted periodically within a time domain window (called SI window). Exemplarily, only SIBs with the same periodicity can be mapped to the same SI message. When each SI message is sent within a periodically occurring time domain window, all SI messages can have an SI window of the same length. Each SI message is associated with an SI window, and the SI windows of different SI messages do not overlap. That is, only the corresponding SI message is sent within an SI window. In addition, the system can send SI messages multiple times within the SI window.

[0069] The above article introduces various SIB messages using NR's system message as an example. Network equipment (e.g., gNB) can periodically send SIB1 for initial access and schedule other SIBs for terminal devices in idle / inactive mode. Even if there is no demand from the terminal device or no terminal device resides on the cell, the network device will always transmit SIB1. It can be seen that in some scenarios, the periodic transmission of SIB1 by the network device may result in a large waste of energy.

[0070] In order to achieve network energy saving, it is necessary to reduce unnecessary SIB1 transmission and associated PRACH monitoring. Therefore, sending SIB1 on demand to terminal devices in idle / inactive state becomes a research direction to provide network devices with more opportunities to be in sleep mode. For example, how to implement on-demand SIB1 (OD-SIB1) transmission to save energy of network devices needs to be considered.

[0071] In some embodiments, a cell that sends SIB1 on demand is called an energy-saving cell, or a network energy saving (NES) cell. For a terminal device in idle mode or inactive state, since the NES cell does not carry SIB1 information when sending SSB, the terminal device needs to send relevant request information / signaling to request the NES cell to send SIB1 information.

[0072] Optionally, the request information of the on-demand SIB1 may be an uplink (UL) wake-up signal (WUS), or other on-demand information / signaling requesting to send SIB1. The uplink wake-up signal may be UL-WUS. UL-WUS is any uplink signal that can trigger the sending of the on-demand SIB1.

[0073] Optionally, the terminal device may send the request information for triggering the on-demand SIB1 via a random access channel (RACH) or a separate signal or sequence. For example, the terminal device may send the WUS via a PRACH.

[0074] In some embodiments, the terminal device may directly request the on-demand SIB1 from the NES cell, or may request the on-demand SIB1 from the anchor cell related to the NES cell. For example, in order to obtain the SIB1 information of the NES cell, the terminal device may send an uplink WUS to the NES cell or the anchor cell. In other words, the SIB1 information obtained by the terminal device may come from the NES cell or the anchor cell.

[0075] For ease of understanding, the following is an example of uplink WUS. Figure 4 The transmission of on-demand SIB1 is schematically illustrated. Figure 4 The terminal device 410 is in the cell A (Cell#A) provided with services by the network device 420.

[0076] like Figure 4 As shown, cell A always periodically sends SSB without SIB1, that is, cell A sends SIB1 on demand. When a terminal device attempts to access cell A that sends SIB1 on demand, the terminal device can trigger cell A to send SIB1 by sending an uplink WUS to cell A. When a cell detects a WUS or an on-demand SIB1 request, the cell can send an on-demand SIB1 to the terminal device 410.

[0077] Combination of the above Figure 4 The method of sending on-demand SIB1 based on request information is introduced. How to obtain time and frequency resources for request information such as WUS for terminal devices in idle or inactive state is a problem that needs to be considered.

[0078] In some embodiments, when the terminal device sends a request information such as WUS, the terminal device needs to obtain the time-frequency resources for sending the request information. Taking WUS as an example, the indication information of the WUS transmission resources can be carried in the SSB sent by cell A. If the SSB does not carry the resource configuration information of the WUS and other requests, when the terminal device attempts to access the cell A that sends SIB1 on demand, the terminal device can send the first request through the PRACH. If the SSB carries the resource configuration information of the WUS and other requests, the terminal device can send the WUS according to the resource configuration information, or the terminal device can send a separate signal or sequence on the resources indicated by the resource configuration information.

[0079] The following takes the NR system as an example to introduce the method of configuring time-frequency resources based on the control resource set (CORESET) and search space (searchspace). CORESET mainly describes the distribution of frequency domain resources, and search space mainly describes the distribution of time domain resources. Therefore, specific time-frequency domain resources can be determined based on the pairing of CORESET and search space.

[0080] In NR, the network usually configures multiple CORESETs and multiple search spaces in the bandwidth part (BWP). By pairing CORESETs and search spaces, multiple time-frequency resources for different purposes can be determined.

[0081] Exemplarily, CORESET and search space may correspond one to one. For example, a pair of time-frequency domain resources determined by CORESET and search space may be used to send downlink control information (DCI) format 0_0 / 1_0 (i.e., DCI_format0_0 / 1_0); another pair of time-frequency domain resources determined by CORESET and search space may be used to send DCI_format 0_1 / 1_1.

[0082] Exemplarily, CORESET and search space can be one-to-many. For example, one CORESET can correspond to multiple search spaces.

[0083] Exemplarily, search space 0 (Searchspace0) is configured for MIB. The time-frequency domain resources determined by search space 0 in combination with CORESET0 can be used for the terminal device to receive remaining minimum system information (RMSI). Among them, RMSI includes SIB1. That is, search space 0 and CORESET0 can be used to indicate the scheduling information of SIB1.

[0084] Exemplarily, based on the search space configured by the network and its associated CORESET, the terminal device can determine the time-frequency resource scheduling of the physical downlink control channel (PDCCH). In a cell that sends SIB1 on demand, the PDCCH sent by the network device can be used to carry the scheduling information of SIB1, so that the terminal device can receive SIB1. Exemplarily, the monitoring timing of SIB1 corresponding to PDCCH can be indicated by the parameters searchSpaceZero and controlResourceSetZero.

[0085] As an example, when a terminal device accesses a NES cell by sending an uplink WUS, it first needs to determine the PDCCH monitoring time, and then determine the timing of receiving SIB1 based on the received PDCCH. However, how the terminal device determines the PDCCH monitoring timing and how the network device performs SIB1 transmission are technical issues that need to be solved.

[0086] In summary, since SIB1 is sent on demand, the network device will send SIB1 only after receiving a request. After the terminal device sends a request, how the network device transmits the on-demand SIB1 and how the terminal device monitors the on-demand SIB1 are both technical issues that need to be solved urgently.

[0087] Based on this, an embodiment of the present application proposes a method for wireless communication. In this method, a terminal device requests a network device to send SIB1 (i.e., SIB1 on demand) through a first message, and then listens to a first control signaling indicating the SIB1 transmission time in a first time window. Among them, the configuration parameters of the first time window are carried in the configuration information of the first message and / or the first response corresponding to the first message. It can be seen that after receiving the configuration information of the first message or the response information of the first message, the terminal device can determine the position of the first time window, so as to receive SIB1 in time. The terminal device is one of a plurality of terminal devices. The network device can dynamically adjust the transmission time of SIB1 according to the number of terminal devices that send the SIB1 request, which helps to improve system performance on the basis of reducing power consumption on the network side.

[0088] For ease of understanding, the following Figure 5 The method proposed in the embodiment of the present application is described in detail. Figure 5 It is introduced from the perspective of the interaction between terminal devices and network devices.

[0089] The terminal device is any communication terminal that can request the on-demand SIB, which is not limited here. In some embodiments, the terminal device can be in an idle state or an inactive state. For example, the terminal device can be a UE in an idle / inactive mode.

[0090] As an example, the terminal device is in an idle state. When the terminal device performs initial access to the NES cell, since the SSB sent by the NES cell does not include SIB1, the terminal device can request the network device serving the NES cell to send an on-demand SIB1.

[0091] As an example, the terminal device is in an inactive state. When the terminal device recovers the connection with the NES cell, the terminal device may wake up the NES cell and request the network device serving the NES cell to send an on-demand SIB1.

[0092] In some embodiments, the terminal device may be a communication terminal supporting the NES function. Exemplarily, when the SSB or MIB does not carry SIB1, the terminal device may request SIB1 from the network device based on the NES function.

[0093] In some embodiments, the terminal device may be a low-power communication terminal. For example, the terminal device may reduce device power consumption by using a low power wake-up receiver (LP-WUR).

[0094] In some embodiments, the terminal device can be used in a variety of application scenarios. The terminal device can be used for any of a variety of service types. For example, enhanced mobile broadband (eMBB), ultra reliable low latency communication (URLLC), enhanced machine-type communication (eMTC), etc.

[0095] In some embodiments, the terminal device is any terminal device among multiple terminal devices requesting SIB1. After multiple terminal devices send SIB1 requests, the network device may determine how to schedule the sending of SIB1 according to the number of terminal devices requesting SIB1.

[0096] The network device may be any network-side device that communicates with the terminal device, such as a base station, and this application does not limit this.

[0097] In some embodiments, the network device may receive an on-demand SIB request sent by a terminal device and trigger the sending of an on-demand SIB. As an example, the network device may be a communication device supporting the NES function. For example, the network device may increase the sleep time of the serving cell based on the NES function. For another example, the network device may implement an energy-saving configuration in which the cell sends SIB1 on demand.

[0098] As an example, the network device may send a periodic SSB to the terminal device in the cell, and the SSB does not contain the configuration information of SIB1. Therefore, it can be seen that the cell served by the network device is an NES cell. For example, the network device may be Figure 1 The network device 110 in.

[0099] As an example, the cell served by the network device may be an anchor cell near the NES cell. The multiple NES cells associated with the anchor cell may include the NES cell corresponding to the terminal device. For example, the anchor cell may receive the SIB1 request for the NES cell.

[0100] As an example, the cell served by the network device is an NTN cell. Exemplarily, the network device may be a satellite in the NTN that covers the area where the terminal device is located, or may be a ground gateway or ground network device in the NTN that communicates with the satellite.

[0101] As an example, the network device may monitor the SIB1 request sent by the terminal device and respond in time. That is, even if the cell where the terminal device is located is in the sleep mode, the network device will monitor the SIB1 request sent by the terminal device.

[0102] In some embodiments, the cell where the terminal device is located is the first cell. That is, the serving cell corresponding to the terminal device is the first cell. The terminal device is in a connected state with the first cell, or the terminal device attempts to access the first cell.

[0103] As an example, the first cell may be an energy-saving cell served by the network device. For example, the first cell may be the NES cell described above. Figure 4 For example, cell A is a NES cell, and the terminal device may be the terminal device 410 in cell A.

[0104] As an example, the first cell may be associated with an anchor cell served by the network device to monitor the SIB1 request through the anchor cell.

[0105] See also Figure 5 , in step S510, the terminal device sends first information to the network device.

[0106] The first information is used to request the network device to send SIB1, so the first information can also be called SIB1 request. The network device triggers the sending of SIB1 based on the request of the terminal device, so the SIB1 requested by the first information can also be called on-demand SIB1.

[0107] In some embodiments, the first information may be an uplink wake-up signal or uplink information or signaling with similar functions to the wake-up signal. For example, the first information may be replaced by a first WUS or a first UL-WUS. For another example, the first information may be a first sequence requesting SIB1.

[0108] In some embodiments, the first information may be sent alone or together with other uplink information. As an example, the first information may be sent along with uplink information of a random access process. For example, the UL-WUS may be sent along with message 1 (Msg1) in a four-step random access process or message A (MsgA) in a two-step random access process, that is, the UL-WUS is sent through a random access request.

[0109] As an example, when the first information is sent along with message 1 or message A, the transmission power of the first information is equal to the transmission power of message 1 or message A. The transmission frequency or the number of transmissions of the first information is determined according to the transmission parameters of message 1 or message A.

[0110] As an example, when the first information is sent alone, the terminal device needs to allocate appropriate transmission power for sending the first information.

[0111] In some embodiments, when the first information is sent separately, the first information may be sent repeatedly according to a certain period. That is, the terminal device may send multiple SIB1 requests. Multiple SIB1 requests are multiple information including the first information, such as multiple WUS. For example, after the terminal device sends the first information, it may also send the second information, the third information, etc. requesting SIB1 in sequence.

[0112] As an example, the contents of the multiple information may be the same or different. For example, when the multiple information includes the first information and the second information, the first information and the second information may only include the same SIB1 request, or may have different identifiers. When the multiple information have different identifiers, the response sent by the network device may carry the identifier for easy identification by the terminal device.

[0113] As an example, the terminal device may repeatedly send UL-WUS at a certain period until the network receives it and gives corresponding feedback.

[0114] As an example, the terminal device may repeatedly send the UL-WUS within a predefined time and then receive a response message.

[0115] In some embodiments, the terminal device may send the first information according to the configuration information of the first information. That is, the configuration information of the first information may indicate the uplink transmission resource of the first information. The configuration information of the first information may come from the network device or a higher layer instruction.

[0116] In some embodiments, in order to allow the network to receive the request information of SIB1 as soon as possible, the multiple transmit powers of the terminal device sending multiple messages can be gradually increased. As an example, the multiple transmit powers can be gradually increased based on a fixed step size. As an example, when the terminal device sequentially allocates multiple transmit powers to multiple messages, the step size of each increase is a multiple of the step size of the previous increase.

[0117] As an example, when the terminal device sends the first information and the second information in sequence, the transmission power of the second information is greater than the transmission power of the first information. When the transmission power of the first information is the initial transmission power, the transmission power of the second information is greater than the initial transmission power.

[0118] The following takes the first information WUS as an example, combined with Figure 6 An exemplary description is given of a method of repeatedly sending the first information. Figure 6 The terminal device in the example sends n WUSs in a certain period, namely WUS#1, WUS#2, ..., WUS#n. The first information may be any WUS among the n WUSs, and the second information is the subsequent WUS. Figure 6 As shown, when the terminal device sends n WUSs, the transmission power gradually increases with a fixed step size.

[0119] In some embodiments, in order to save the transmission power of the terminal device, the transmission power of the multiple information repeatedly sent according to a certain period may be constant. In other words, the multiple transmission powers of the multiple information are the same.

[0120] As an example, when the terminal device sends the first information and the second information in sequence, the transmission power of the second information is equal to the transmission power of the first information. When the transmission power of the first information is the initial transmission power, the transmission powers of the multiple information are equal to the initial transmission power.

[0121] Still taking the first information as WUS as an example, combined with Figure 7 Another method of repeatedly sending the first information is described. Figure 6 compared to, Figure 7 When the terminal device in sends n WUS, the transmission power is constant. Figure 7 As shown, the transmission powers of n WUSs are the same.

[0122] In some embodiments, when sending multiple messages, the terminal device may increase the transmission power in stages. As an example, the transmission power is kept constant for several cycles and then increased, and the increased power is maintained for several cycles.

[0123] In some embodiments, in order to allow the network to receive the request information of SIB1 as soon as possible, the terminal device can adjust the transmission period of multiple messages. As an example, the transmission period of at least two messages with later transmission time among the multiple messages is less than the transmission period of at least two messages with earlier transmission time. In other words, the transmission of multiple messages with later time is more intensive. For example, if the terminal device does not receive feedback from the NES / anchor cell within a predefined time, the transmission period of the UL-WUS can be reduced to make the UL-WUS transmission more intensive.

[0124] For a network device, after receiving the first information or any one of the multiple information sent by the terminal device, the network device can perform transmission of SIB1. For example, after receiving UL-WUS, the base station of the NES cell can perform on-demand SIB1 transmission in the time domain.

[0125] In some embodiments, after receiving the SIB1 request, the network device may send a response message about the SIB1 request to the terminal device so that the terminal device stops sending the SIB1 request. For example, when the NES cell receives the UL-WUS, the network device may send a feedback of the first information, i.e., a response to the first information, through a physical downlink shared channel (PDSCH).

[0126] As an example, one PDSCH may carry multiple responses corresponding to multiple terminal devices.

[0127] In the above embodiment, the response information of the SIB1 request may also be referred to as a request response (RR) or a received response (RR). The response information corresponding to the first information is the first response. That is, the feedback of the network device for the first information is the first response.

[0128] As an example, the first response includes one or more of the following information: an identifier of the first information (for example, a special identifier of UL-WUS), time adjustment information, initial uplink scheduling, uplink and downlink scheduling resources, and parameters such as searchSpaceZero, starting offset of the PDCCH window, and duration of the PDCCH window.

[0129] As an example, the first response is one response, that is, the network device may send one response for one SIB1 request.

[0130] As an example, the first response is multiple responses, that is, the network device can send multiple responses for one SIB1 request.

[0131] As an example, when the first response includes multiple responses, the multiple responses all carry the identifier of the first information.

[0132] In some embodiments, after the terminal device sends the first information, it can monitor the first response from the network device within the second time window. In other words, the first response is associated with the second time window. The second time window for monitoring the request response can also be called a request response window (RRW). It can be seen that after the network device receives the first information, it will send the first response within the second time window.

[0133] As an example, after the terminal device sends UL-WUS, it will wait for the first response within the second time window. When the first response includes the first control signaling, the terminal device will also monitor the first control signaling. If the identifier carried by the response received by the terminal device is the same as the identifier of the sent UL-WUS, the response is successful. If the terminal device does not receive a response within the second time window or fails to verify the response, the response fails. In this case, if the number of times the first information is sent is less than a predefined or preconfigured upper limit, the terminal device resends the first information. Otherwise, the SIB1 request fails. For example, after the terminal device sends UL-WUS, it will listen for a response within the RRW. If no reply information / signaling from the base station is received within this RRW, it is considered that the UL-WUS transmission has failed.

[0134] In some embodiments, the second time window may be used for the network device to send multiple responses. That is, the first response belongs to multiple responses sent by the network device in the second time window. The multiple responses are used to feedback multiple SIB1 requests sent by the terminal device, or multiple SIB1 requests sent by multiple terminal devices. That is, when the network device receives information of multiple requests for SIB1, it will send multiple responses respectively.

[0135] As an example, the multiple information corresponding to the multiple responses are multiple SIB1 requests sent by a terminal device.

[0136] As an example, the multiple information corresponding to the multiple responses are SIB1 requests respectively sent by multiple terminal devices. For example, after receiving multiple UL-WUS sent by multiple terminal devices, the NES cell can send RRs to the multiple terminal devices respectively in the RRW.

[0137] In the above example, the NES cell sends multiple responses within the second time window, and using the same offset between multiple responses and multiple PDCCH windows means that the start time of multiple PDCCH windows varies according to the reception time of multiple responses. In this scenario, the NES cell may need a larger window to transmit OD-SIB1. For example, in order to allow enough terminal devices to align and receive OD-SIB1 within a certain time window, the gNB needs to predefine / preconfigure a time window of length L to send SIB1 to improve the resource utilization of the system.

[0138] As an example, when multiple messages come from one terminal device, the network device may also send one response. In this scenario, the number of responses sent by the network device in the second time window is the same as the number of terminal devices requesting SIB1 in the specific time period. In other words, the network device may send a response to the terminal device that sends the SIB1 request to reduce resource overhead.

[0139] In the above example, the specific time period may be before the second time window or partially overlap the second time window. The duration of the specific time period may be determined by the network device itself or indicated to the terminal device through a higher layer so that the terminal device can determine the second time window.

[0140] As an example, the configuration parameters of the second time window may be carried in the configuration information of the first information. For example, the WUS configuration information may indicate the configuration of the second time window so that the terminal device can monitor the response information in a timely manner.

[0141] As an example, the start time of the second time window can be determined according to the sending time and transmission delay of the first information. In the application embodiment, the start time of the time window is the time point when the time window starts, and the end time is the time point when the time window ends.

[0142] In some embodiments, the network device may also configure an offset between the first information and the first response, such as a fifth offset. The fifth offset may be an offset time configured by the cell, which is usually used to ensure the scheduling and response preparation time of the cell after receiving the UL-WUS. In this scenario, the fifth offset may be a fixed offset based on a period after the first information is sent.

[0143] In some embodiments, the second time window may be used for the terminal device to monitor one or more responses corresponding to the first information. For example, after receiving the UL-WUS, the NES cell may send multiple RRs within the RRW to improve the reliability of RR reception at the terminal device side.

[0144] As an example, the position of one or more responses corresponding to the first information within the second time window may be determined by the network device. For example, when the service type of the terminal device is a service with a higher priority, the network device may send the first response earlier.

[0145] In some embodiments, the first response may include an identifier for identifying the response so that the terminal device can perform subsequent uplink transmission according to the response. The NES cell may parse the identifier according to the uplink transmission to confirm which response the terminal device has successfully received.

[0146] As an example, after receiving the first response, the terminal device may feedback a positive confirmation (ACK) to the network device, wherein the ACK fed back by the network device may carry an identifier for identifying the first response.

[0147] As an example, the identifier included in the first response may be a sequence number or a timestamp. For example, each response sent by the NES cell within the second time window may include a unique identifier.

[0148] In some embodiments, in addition to feeding back the first information, the first response may also instruct the terminal device to monitor the first control signaling within the first time window. Exemplarily, the first response may indicate configuration parameters of the first time window, which will be described below in conjunction with step S520.

[0149] In some embodiments, the first response may include a first control signaling, and receiving the first response by the terminal device is receiving the first control signaling.

[0150] In step S520, the terminal device monitors the first control signaling in the first time window. The first control signaling is used to instruct the terminal device to receive SIB1.

[0151] The first control signaling may include scheduling information of SIB1, so as to instruct the terminal device to receive SIB1. In some embodiments, the first control signaling may be a PDCCH that schedules SIB1. After receiving the PDCCH, the terminal device may determine one or more SIB1 transmission opportunities for the cell to send SIB1 according to the information in the PDCCH, so as to receive SIB1.

[0152] The first time window may be used for the terminal device to monitor the first control signaling. As an example, the first time window may include one or more PDCCH monitoring occasions (MO), so the first time window may also be referred to as a PDCCH window. The PDCCH monitoring occasion is used for the terminal device to monitor the PDCCH and SIB1, and may also be referred to as an on-demand SIB1 PDCCH monitoring occasion.

[0153] In some embodiments, the parameters of the first time window are determined based on the parameters of the second time window. The parameters of the first time window include the duration, start time and / or end time of the first time window. The parameters of the second time window include the duration, start time and / or end time of the second time window. It can be seen that the first time window for monitoring PDCCH and / or SIB1 is associated with the second time window for responding to the SIB1 request.

[0154] As an example, the first control signaling may be sent separately after sending the first response. In this scenario, the start time of the first time window may be later than the start time of the second time window. For example, the start time of the first time window may be the end time of the second time window, or any time point after the start time of the second time window.

[0155] In the above example, when the first control signaling is sent separately, the terminal device needs to determine when to start monitoring the first control signaling. In other words, the terminal device needs to determine the configuration parameters of the first time window for monitoring the first control signaling.

[0156] As an example, the first control signaling may be carried in the first response. When the first response includes the first control signaling, the start time of the first time window may be the same as the start time of the second time window. The duration of the second time window may be less than or equal to the duration of the first time window.

[0157] In the above example, when the first response includes the first control signaling, the terminal device may monitor the first control signaling in the second time window.

[0158] In some embodiments, the first time window may also be used by the terminal device to receive SIB1. As can be seen, the terminal device may monitor the first control signaling within the first time window, and complete the reception of SIB1 according to the monitored first control signaling.

[0159] As an example, SIB1 within the first time window can be repeatedly transmitted to improve reliability and meet the needs of multiple terminal devices. The maximum number of on-demand SIB1 repetitions may depend on static factors, such as the size of the first cell. For example, SIB1 is transmitted once every 160ms, and the default repetition interval is within 160ms. Based on the searchSpaceZero setting, the network device can use Type-0 PDCCH to schedule the timing of SIB1 repetition transmission within 160ms.

[0160] In some embodiments, the configuration parameters of the first time window can be used by the terminal device to determine the position of the first time window in the time domain. For example, the configuration parameters of the first time window can be used by the terminal device to determine the start time of the first time window and the duration (duration) of the first time window. For another example, the configuration parameters of the first time window can be used by the terminal device to determine the start time and end time of the first time window.

[0161] As an example, the duration of the first time window may be set long enough to allow a terminal device with a low signal-to-noise ratio (eg, a UE located at a cell edge) to receive and combine multiple repeated SIB1s for successful decoding.

[0162] As an embodiment, the configuration parameters of the first time window may explicitly or implicitly indicate the start time and duration of the first time window. For example, the configuration parameters of the first time window may include the start time and duration of the first time window. For another example, the configuration parameters of the first time window may include a reference time point and an offset between the start time of the first time window and the reference time point.

[0163] In the above embodiment, the reference time point can be defined according to the reception time of the first response. For example, the reference time point can be defined by the reception time slot, symbol, or frame of the first response. In other words, the reference time point is the reception time of the first response.

[0164] In the above embodiment, the reference time point can be defined according to the sending time (transmission time) of the first information. That is, the reference time point is the sending time of the first information. There must be a certain time interval between the start time of the first time window and the sending time of the first information, so that the terminal device can receive the first response. The terminal device will receive SIB1 only after receiving the first response. For example, the terminal device monitors the on-demand SIB1 in the PDCCH window only when it successfully receives the RR within the RRW after the UL-WUS transmission. Therefore, the reference time point of the first time window can be a time point based on the sending time of the UL-WUS and after a period of offset time.

[0165] In the above embodiment, the reference time point may be defined according to the second time window. As an example, the reference time point may be the start time or the end time of the second time window. For example, the reference time point may be the start time of the second time window after the UL-WUS transmission. For another example, the reference time point is defined according to the second time window, and the terminal device may also monitor the scheduling information of the PDCCH within this window.

[0166] The configuration parameters of the first time window may be carried in the configuration information of the first information, the first response and / or the MIB. As an example, the terminal device may determine the configuration parameters of the first time window according to the configuration information of the first information. As another example, after sending the first information, the terminal device may determine the configuration parameters of the first time window according to the first response fed back by the network device.

[0167] In some embodiments, when the configuration parameters of the first time window are carried in the configuration information of the first information or the MIB, the configuration of the first time window is a semi-static configuration. As an example, when the first information is UL-WUS, the configuration information of the first information can be referred to as UL-WUS configuration. The network device can implement the semi-static configuration of the first time window parameters through the UL-WUS configuration to support the transmission of OD-SIB1.

[0168] In the above embodiment, the configuration parameters of the first time window are associated with at least one of the following information: a reference time point for determining the first time window; an offset for determining the first time window; and one or more candidate durations of the first time window.

[0169] As an example, the configuration parameters of the first time window may indicate any of the reference time points described above. For example, the reference time point used to determine the start time of the first time window is the sending time of the first information or the receiving time of the first response. In other words, the start time of the first time window is determined according to the sending time of the first information and / or the receiving time of the first response.

[0170] As an example, the configuration parameters of the first time window may include an offset between the start time of the first time window and a reference time point. For example, when the reference time point is the reception time of the first response, the configuration parameters of the first time window may include a first offset between the reception time of the first response and the start time of the first time window. For another example, when the reference time point is the transmission time of the first information, the configuration parameters of the first time window may include a fourth offset between the transmission time of the first information and the start time of the first time window.

[0171] In the above example, multiple terminal devices may be configured with the same first offset or fourth offset. When the first offsets are the same, the start time of the first time window on the terminal device side may vary according to the time when the first response is successfully received, which may be unknown to the NES cell because the network device may not be able to determine the time when the terminal device successfully receives the first response.

[0172] As an example, the configuration parameters of the first time window may include one or more candidate durations, and the duration of the first time window is one of the one or more candidate durations. In order to improve the flexibility of the semi-static indication, the network device may indicate multiple candidate durations through semi-static configuration, and the terminal device may select the duration of the first time window from the multiple candidate durations according to other information. For example, the duration of the first time window may be predefined with multiple configuration values.

[0173] As an example, the configuration parameters of the first time window may include searchSpaceZero and controlResourceSetZero. For example, for the PDCCH monitoring scenario of on-demand SIB1, the network device may provide searchSpaceZero and controlResourceSetZero of on-demand SIB1 in the UL-WUS configuration (configuration information of the first information).

[0174] In some embodiments, when the configuration parameters of the first time window are carried in the first response, the configuration of the first time window is a dynamic indication. For example, the first response can support dynamic indication of the start time and duration of searchSpaceZero and / or the first time window. In other words, the information of the first response can carry the monitoring window of the on-demand SIB1. When the terminal device successfully receives the first response on a certain frame / time slot / symbol in the time domain, the first response can carry the actual time window (first time window) information sent by the on-demand SIB1.

[0175] In the above embodiment, the configuration parameters of the first time window are associated with at least one of the following information: a first offset between the reception time of the first response and the start time of the first time window; the duration of the first time window; the end time of the first time window; the start time of the second time window; the time of the second time window. The second time window in which the terminal device receives the first response can be associated with the configuration parameters of the first time window.

[0176] As an example, since the terminal device cannot determine the time when the first response is received, the time reference point for dynamic indication is usually the time when the first response is received. The configuration parameters of the first time window may include a first offset. For example, the network device may indicate the first offsets corresponding to multiple terminal devices through multiple responses to align the first time windows of the multiple terminal devices.

[0177] As an example, in the configuration mode of dynamic indication, the configuration parameters of the first time window can directly indicate the duration of the first time window. For example, the first response received by the terminal device through LP-WUR can indicate the start time and duration of the first time window.

[0178] As an example, in the configuration mode of dynamic indication, the configuration parameters of the first time window may include the end time of the first time window.

[0179] In some embodiments, some of the configuration parameters of the first time window may be fixed, and other parameters may be configurable. For example, when the configuration parameters of the first time window are carried in the UL-WUS configuration, the duration of the first time window may be indicated by the UL-WUS configuration, and the offset of the start time of the first time window may be fixed. A configurable duration may cover the target number of SIB1 repetition transmissions based on the size of the first cell. A fixed start time offset may be predefined or preconfigured by a higher layer or protocol.

[0180] In the above embodiment, the network device may process the delay based on the PDSCH on which the first response is sent.

[0181] In some embodiments, the format of the configuration information of the first response or the first information needs to be redesigned to support a PDCCH window with semi-static or fixed parameters. As an example, when the first information is sent via a random access request, a set of parameter values ​​as shown in (searchSpaceZero, start offset of the PDCCH window, duration of the PDCCH window) can be used in the first response triggered by the first information transmitted on different PRACH occasions.

[0182] In some embodiments, the first control signaling may instruct the terminal device to receive SIB1 by indicating the transmission time of SIB1. The transmission time of SIB1 is usually scheduled by the cell. After the network device determines the transmission time of SIB1, it may inform the terminal device through the first control signaling. As an example, the network device may plan based on a specific time interval (periodicity) or according to the coverage requirements of different SSBs. As an example, the network device may schedule the transmission of SIB1 based on the number of terminal devices requesting SIB1 within a period of time or the location of the terminal devices. The period of time may be the specific time period described above.

[0183] In some embodiments, the transmission time of SIB1 may include one or more of the following parameters: a time window parameter for sending SIB1, one or more SIB1 transmission opportunities or SIB1 monitoring opportunities (SIB1 MO), and a transmission period of SIB1.

[0184] As an example, multiple SIB1 transmission opportunities correspond to different SSBs to meet the requests of different regions. For example, multiple SIB1 transmission opportunities may periodically correspond to multiple SSBs sent by the network device, such as SSB#0 and SSB#1.

[0185] In the above example, when multiple terminal devices including a terminal device request OD-SIB1, the request time may be different. The first time windows of different terminal devices may overlap or partially overlap. In the overlapping time interval, the NES cell may send SIB1 associated with different SSBs for different terminal devices.

[0186] In some embodiments, one or more SIB1 transmission opportunities may be configured within a time window for a network device to transmit SIB1. A SIB1 transmission opportunity refers to an opportunity when a network device transmits SIB1, or an opportunity when a terminal device receives SIB1.

[0187] Optionally, the multiple SIB1 transmission opportunities within the time window for sending SIB1 may be periodic or non-periodic.

[0188] As an example, the time window for sending SIB1 belongs to the first time window, or is the first time window (SIB1 TDW1 ). When the time window for sending SIB1 belongs to the first time window, the starting point of the first time window is the indicated starting time.

[0189] As an example, after the terminal device sends UL-WUS, the actual starting time of SIB1 monitoring window is usually delayed from the end time of RRW to ensure that the terminal device has enough time to decode RR and prepare to monitor SIB1. The cell can schedule multiple SIB1s in different SSB ranges to meet the needs of different terminal devices.

[0190] In the above example, the actual transmission time of SIB1 is usually not completely consistent with the start time of the first time window, but there is a certain delay. The cell side cannot predict which response the terminal device will receive, so it is necessary to send responses at multiple time points and transmit the on-demand SIB1 at an appropriate time after the response according to the scheduling plan. The transmission time of the on-demand SIB1 must cover the possible listening time of the terminal device after the second time window to ensure that the terminal device has the opportunity to receive SIB1.

[0191] It should be noted that when SIB1 is transmitted after the second time window, it is necessary to reserve processing time for the terminal device after receiving the first response (for example, the time required to decode the first response, calculate subsequent actions, etc.). In addition, the first cell may need to transmit SIB1 on different SSB resources, so the specific transmission time of SIB1 may be multiple discrete time points.

[0192] In some embodiments, the network device may set two time windows: a first time window and a third time window (SIB1 TDW3 ). The first time window is a time window in which the terminal device can monitor the PDCCH, and the third time window is a time window for actually transmitting SIB1 as described above. The first time window and the third time window can be configured through the configuration information of the first information, the first response or the MIB.

[0193] As an example, the first time window may include the third time window. That is, the first time window may be larger than the third time window, and the third time window for actually transmitting SIB1 is used as a part of the first time window. TDW1 After the start time point), all terminal devices that successfully receive the response need to wait for the arrival of the third time window, and the waiting time is (SIB1 TDW1-SIB1 TDW3 ).

[0194] As an example, the start time of the third time window can also be based on the reception time when the first response is successfully received as a reference time point. For example, the terminal device can monitor PDCCH and SIB1 by shifting back several subframes / time slots. In the third time window, the network device needs to allow more terminal devices to receive the on-demand SIB1. For example, the network device can indicate the first offsets corresponding to multiple terminal devices through multiple responses to align the third time windows of multiple terminal devices and uniformly schedule the windows of SIB1.

[0195] In some embodiments, the first time window may include a third time window and / or a fourth time window (SIB1) for transmitting SIB1. TDW4 ). The third time window may include one or more SIB1 transmission opportunities. The fourth time window may include one or more candidate SIB1 transmission opportunities. It can be seen that the third time window is certain to transmit SIB1, and the fourth time window needs to meet certain conditions to transmit SIB1.

[0196] As an example, the scenario in which the first time window only includes the third time window is as described above. In some scenarios, the first time window may also only include the fourth time window, that is, only one or more candidate SIB1 transmission opportunities are configured in the first time window, and multiple periodic SIB1 transmission opportunities are not included. In some scenarios, the first time window includes the third time window and the fourth time window, which are described in detail below.

[0197] Optionally, when the first time window includes the third time window and the fourth time window, the network device may be configured to open only the third time window, or may be configured to open both the third time window and the fourth time window, or may be configured to open only the fourth time window.

[0198] Optionally, the third time window and the fourth time window may also be adjusted dynamically. For example, the third time window and the fourth time window may be adjusted based on changes in cell load. For another example, when the load is low, the transmission opportunity intervals in the third time window and the fourth time window may be increased to save resources.

[0199] As an example, multiple SIB1 transmission opportunities in the third time window are configured according to a certain period. That is, the on-demand SIB1 transmission in the third time window is periodic. The SIB1 transmission opportunity may also be referred to as a SIB1 scheduling opportunity or a SIB1 scheduling time point.

[0200] As an example, the fourth time window is a candidate time window for scheduling SIB1, which may also be referred to as a SIB1 candidate time window. The candidate SIB1 transmission timing in the SIB1 candidate time window may be a set of time points predefined by the cell that may be used for on-demand SIB1 transmission. Multiple candidate SIB1 transmission timings within the fourth time window may be distributed according to periodicity or scheduling logic. For example, multiple candidate SIB1 transmission timings within the fourth time window may be periodic or non-periodic.

[0201] As an example, in the first time window, the fourth time window is earlier than the third time window. For example, the start time of the fourth time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window. When the fourth time window is earlier than the third time window, the predefined one or more candidate SIB1 transmission opportunities can meet the needs of a specific terminal device.

[0202] As an example, in the first time window, the fourth time window is later than the third time window. The start time of the third time window is earlier than the start time of the fourth time window, and / or the end time of the third time window is not later than the start time of the fourth time window. When the fourth time window is later than the third time window, the predefined one or more candidate SIB1 transmission opportunities can avoid some terminal devices from not receiving SIB1 in time.

[0203] In the above embodiment, the third time window is used as the time window for actually transmitting the on-demand SIB1, that is, the window in which the network actually sends the on-demand SIB1, in order to ensure that the qualified terminal devices can receive the valid SIB1 within the specified time window. The fourth time window allows some specific terminal devices to receive the on-demand SIB1.

[0204] In some embodiments, the candidate SIB1 transmission opportunity is a transmission opportunity predefined by the network device. When the candidate SIB1 transmission opportunity is activated, the candidate SIB1 transmission opportunity becomes the SIB1 transmission opportunity; when the candidate SIB1 transmission opportunity is not activated, the opportunity does not send SIB1.

[0205] As an example, the one or more candidate SIB1 transmission opportunities include a first candidate SIB1 transmission opportunity. Whether the first candidate SIB1 transmission opportunity is activated is determined according to a first activation condition. The first activation condition may be event-related or may be a specific scenario.

[0206] In the above example, some candidate SIB1 transmission opportunities in the fourth time window may be activated only when certain conditions are met or triggered based on events. For example, a request sent by the terminal device or a channel state that meets the requirements. For these candidate SIB1 transmission opportunities, a conditional function can be introduced. If the condition is met or the event is triggered, the on-demand SIB1 is sent on these transmission opportunities.

[0207] In the above example, the first activation condition is related to the service priority and / or service demand of the terminal device. At the first candidate SIB1 transmission timing, if no terminal device meets the conditions for decoding or receiving the on-demand SIB1, the cell will choose not to activate the first candidate SIB1 transmission timing, that is, not to send the on-demand SIB1 at this transmission timing. Optionally, for the candidate SIB1 transmission timing that is not activated within the fourth time window, the NES cell can be allocated to higher priority services.

[0208] As an example, the number of activated candidate SIB1 transmission opportunities among multiple candidate SIB1 transmission opportunities is also determined according to the number of multiple terminal devices. As an example, when there are many terminal devices sending UL-WUS in the first cell, the first cell needs to allocate resources according to the needs of each terminal device, which may affect the transmission timing configuration of SIB1. For example, multiple terminal devices may listen to SIB1 at the candidate SIB1 transmission opportunity. The network needs to dynamically adjust the allocation of these transmission opportunities according to the load. Under high load conditions, the first cell may densely allocate candidate SIB1 transmission opportunities (i.e., shorten the interval between candidate time points); under low load conditions, the first cell may reduce the number of candidate SIB1 transmission opportunities and lengthen the transmission interval to save resources.

[0209] As an example, the number of candidate SIB1 transmission opportunities can be predefined. Under high load conditions, all candidate SIB1 transmission opportunities are used for actual SIB1 transmission. Under low load conditions, the cell transmits SIB1 only on a few transmission opportunities, and the unused transmission opportunities are reserved.

[0210] As an example, the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to the network load of the current time period. When the multiple candidate SIB1 transmission opportunities in the fourth time window are distributed based on the first period, the first period of the current period is the current first period. The current first period is related to one or more of the following information: the initial value of the first period; the maximum load of the first cell where the terminal device is located; the load threshold of the first cell where the terminal device is located; the current load of the first cell where the terminal device is located.

[0211] As an example, the initial value of the first period is a fixed interval period of the candidate SIB1 transmission opportunities.

[0212] As an example, the maximum load of the first cell may be the maximum number of terminal devices in the first cell (eg, cell capacity).

[0213] As an example, the load threshold of the first cell may be a threshold value for load adjustment of the first cell.

[0214] As an example, the current load of the first cell may be the number of terminal devices requesting SIB1 in the current period.

[0215] For example, the candidate period can be expressed as Among them, T1 represents the initial value of the first cycle, N max represents the maximum load or load threshold of the first cell, and N represents the current load of the first cell.

[0216] Optionally, T1′ is an adjusted period, that is, an interval after dynamic load adjustment. When N increases, T1′ decreases, and more SIB1s are required; when N decreases, T1′ increases, and fewer SIB1s are required. If there are many terminal devices sending UL-WUS within a period of time, the NES cell needs to provide reliable responses (and SIB1) for these terminal devices, which requires increasing the SIB1 transmission timing. If there are few terminal devices sending UL-WUS within a period of time, the cell only needs to transmit SIB1 at a few time points, reducing the activated candidate SIB1 transmission timing.

[0217] In some embodiments, the likelihood of multiple candidate SIB1 transmission opportunities being activated within the fourth time window can be estimated by probability. Assuming P is the probability that the candidate SIB1 transmission opportunity is actually used to transmit SIB1, then:

[0218] Optionally, when P approaches 1, it indicates high load, and all candidate time points are basically filled. When P approaches 0, it indicates low load, and most candidate points do not send SIB1. By setting different thresholds of P, the candidate time points for sending on-demand SIB1 can be dynamically adjusted.

[0219] In some embodiments, the fourth time window may also be used for the network device to monitor SIB1 requests of multiple terminal devices.

[0220] In some embodiments, when the first response includes the first control signaling, the first control signaling may further indicate a second offset between the reception time of the first response and the first SIB1 transmission opportunity. That is, the first control signaling may directly instruct the terminal device to receive SIB1 at the first SIB1 transmission opportunity. The first SIB1 transmission opportunity is a SIB1 transmission opportunity that is closest to the reception time of the first response.

[0221] In the above embodiment, the multiple terminal devices may correspond to the same second offset or different second offsets. For example, at least two of the multiple second offsets corresponding to the multiple terminal devices are different.

[0222] In some embodiments, when the first response does not include the first control signaling, the first response may indicate a third offset between the reception time of the first response and the first monitoring opportunity. The first monitoring opportunity is an opportunity within the first time window for the terminal device to monitor the first control signaling. The first monitoring opportunity may also be a dedicated monitoring opportunity configured by the network device for the terminal device.

[0223] As an example, the first monitoring occasion may be one of a plurality of PDCCH monitoring occasions.

[0224] In the above embodiment, multiple terminal devices may correspond to the same third offset or different third offsets. For example, when multiple terminal devices correspond to the same third offset, all terminal devices in the same cell share the same scheduling parameters. For another example, at least two of the multiple third offsets corresponding to the multiple terminal devices are different.

[0225] In some embodiments, a plurality of terminal devices including a terminal device may correspond to different third offsets. For example, the offset of the PDCCH corresponding to each terminal device is different. The third offset corresponding to any terminal device among the plurality of terminal devices is determined according to at least one of the following information: the location of any terminal device; the service type of any terminal device; the resources of any terminal device; the network configuration of the first cell where the plurality of terminal devices are located.

[0226] As an example, terminal devices at different locations have different requirements for SIB1 scheduling. For example, terminal devices at different locations will have different path losses and propagation delays, which will affect the reference time points corresponding to their UL-WUS and RR. If the physical locations of terminal device 1 and terminal device 2 are close, and the difference in their path losses and propagation delays is small, the third offset can be set to the same value. If the physical locations of terminal device 1 and terminal device 2 are far apart, the third offset needs to be configured separately to compensate for the difference in propagation delays.

[0227] As an example, different terminal devices may belong to different service types (such as eMBB, URLLC, eMTC, etc.). Different service types have different scheduling priorities and resource allocations. For high-priority terminal devices (such as URLLC users), the third offset may be shorter, and the transmission arrangement of request responses and on-demand SIB1 will also be earlier.

[0228] As an example, different terminal devices may be allocated different transmission resources, which may affect the configuration of scheduling parameters.

[0229] In some embodiments, when the terminal device does not detect the first control signaling / SIB1 within the first time window, a retransmission request can be sent. For example, if the terminal device does not detect the PDCCH within the first time window, it can request the network device to retransmit. For example, in the NES cell, after the terminal device sends the UL-WUS signal, it will listen / monitor the OD-SIB1 scheduled by the PDCCH within the first time window. If the OD-SIB of the PDCCH is not received within the first time window, it is considered that the UL-WUS transmission has failed, and then a retransmission is requested.

[0230] As an example, the terminal device may request a retransmission by sending a negative acknowledgement (NACK).

[0231] As an example, the network device can determine the transmission timing of RR and SIB1 / PDCCH according to whether the terminal device feeds back ACK / NACK. If the terminal device fails to receive a response in RRW or the response does not include the PDCCH window information for scheduling SIB1, and the PDCCH window information is not included in the semi-static configuration, retransmission on the cell side can be triggered.

[0232] Combination of the above Figures 5 to 7 The invention discloses a method for a terminal device to send a first message and monitor a first control signaling through configuration information of the first message or a first response. The terminal device may send a plurality of messages including the first message to ensure that a network device receives a SIB1 request. The network device may send one or more responses based on a message and then perform transmission of SIB1 after the response.

[0233] For ease of understanding, the following Figure 8 and Fig. 9 , an exemplary description is given of the SIB1 transmission performed by a network device (e.g., gNB) after sending a response. Figure 8 A network device receives a response (RR) and SIB1 from a terminal device. Fig. 9 It is a response and SIB1 sent by the network device based on multiple terminal devices. It should be noted that when the response sent by the network device does not include PDCCH, Figure 8 and Fig. 9 The SIB1 in can also be replaced by control signaling (PDCCH).

[0234] Figure 8 Taking the example of sending UL-WUS based on power ramp-up, it is also applicable when the power is constant. Figure 8As shown, the three UL-WUS sent by the terminal device are WUS#1, WUS#2 and WUS#3. There will be a RRW after each UL-WUS, that is, the second time window. Taking the RRW after WUS#3 as an example, the network device can send multiple RRs in the RRW, such as RR#1 to RR#x.

[0235] See also Figure 8 , within the RRW, RR#1 can be the first response received at the start of the RRW, and RR#x is the last response received after the start of the RRW. The gNB time window is used to send SIB1. The start time of the gNB time window can be determined based on the time point when the terminal device receives RR#1 and the offset t1, and the end time can be determined based on the reception time of RR#x, the offset tx and the SIB1 transmission period.

[0236] Optionally, when SIB1 is PDCCH, Figure 8 The offset in may be the third offset mentioned above. t1 may be equal to tx, that is, the plurality of third offsets are equal. t1 may also be unequal to tx, that is, at least two of the plurality of third offsets are unequal.

[0237] Fig. 9 Take x terminal devices including terminal devices as an example for explanation. The x terminal devices are UE1, UE2 to UEx. The x terminal devices can send x WUSs respectively and listen to the RR sent by the network device in the RRW. The terminal device can receive SIB1 or PDCCH based on the offset tx after receiving the RR. The start time of the gNB time window can be determined based on the reception time of the sent RR#1 and the offset t1, and the end time can be determined based on the reception time of RR#x, the offset tx and the SIB1 transmission period.

[0238] Optionally, Fig. 9 When the RR in the SIB1 includes the first control signaling, t1 or tx may represent the second offset mentioned above. The multiple second offsets of the multiple terminal devices are usually different. However, when the transmission period of the RR is the same as SIB1, the multiple second offsets are the same.

[0239] Optionally, Fig. 9 When the RR in does not include the first control signaling, t1 or tx may represent the third offset mentioned above. The multiple third offsets of the multiple terminal devices may be different or the same.

[0240] Combination of the above Figure 8 and Fig. 9 An example of a network device sending a first response, a first control signaling and / or SIB1 based on WUS is introduced. Fig.10 and Fig.11, an exemplary description is given of the multiple time windows and multiple offsets mentioned above.

[0241] In order to explain the partial time windows and offsets mentioned above, the following definitions are made: T UL-WUS Indicates the starting time point of UL-WUS transmission, that is, the transmission time of the first information. RR_ref Indicates the reference time point corresponding to the first response (also called RR reference time point), that is, the start time of the second time window. ΔT RRW Indicates the duration of the second time window. SIB1_trans Indicates the actual transmission time point of SIB1. ΔT offset_RR ΔT represents the offset between UL-WUS and the reference time point corresponding to the first response, that is, the fifth offset. offset_SIB1 It represents the offset between the reference time point corresponding to the first response and the actual transmission time point of SIB1, that is, the second offset.

[0242] Based on the relevant definitions in the above examples, the reference time point corresponding to the first response can be expressed as: T RR_ref =T UL-WUS +T offset_RR ; The end time point of the second time window can be expressed as: T RR_end =T RR_ref +ΔT RRW ; The general formula for the actual transmission time point of SIB1 can be expressed as: T SIB1_trans =T RR_ref +ΔT RRW +T offset_SIB1 .

[0243] Fig.10 Schematic diagram of setting the first time window and the third time window for a network device. Fig.10 As shown, after the terminal device sends WUS, the network device can send RR at the reference time point or in the second time window related to the reference time point. According to the time point corresponding to WUS or RR, the terminal device can determine the indicated start time of the first time window. The start time of the third time window for periodically sending SIB1 is the actual start time of the SIB1 monitoring window. Fig.10 It can be seen that the start time of the third time window is later than the start time of the first time window, the end time of the third time window is the same as the end time of the first time window, and the length of the third time window is shorter than the first time window.

[0244] Continue to see Fig.10 The third time window includes multiple SIB1 transmission opportunities. The multiple SIB1s in the third time window periodically correspond to SSBs sent by the network device, such as SSB#0 and SSB#1, to meet SIB1 requests of terminal devices in different areas.

[0245] Fig.11 is a schematic diagram showing that the first time window includes the third time window and the fourth time window. Fig.10 In contrast, the fourth time window includes one or more candidate SIB1 transmission opportunities, and the dotted lines may represent the candidate SIB1 transmission opportunities.

[0246] Depend on Fig.10 and Fig.11 It can be seen that there is a certain relationship and time offset between the RR reference time point and the actual transmission time point of SIB1.

[0247] Combination of the above Figures 1 to 11 , describes in detail the method embodiment of the present application. Figure 12 to Figure 14 , describes the device embodiment of the present application in detail. It should be understood that the description of the device embodiment corresponds to the description of the method embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0248] Fig.12 1200 is a schematic block diagram of a device for wireless communication according to an embodiment of the present application. The device 1200 may be any terminal device described above. Fig.12 The illustrated apparatus 1200 includes a sending unit 1210 and a receiving unit 1220 .

[0249] The sending unit 1210 may be configured to send first information, where the first information is used to request the network device to send SIB1.

[0250] Receiving unit 1220 monitors the first control signaling within the first time window; wherein the first control signaling is used to instruct the terminal device to receive SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

[0251] Optionally, the first response is associated with the second time window, and parameters of the first time window are determined based on parameters of the second time window.

[0252] Optionally, the first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used for the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used for the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

[0253] Optionally, the first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

[0254] Optionally, the start time of the third time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window.

[0255] Optionally, the one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

[0256] Optionally, the network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

[0257] Optionally, the number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to a network load in a current period.

[0258] Optionally, multiple candidate SIB1 transmission opportunities in the fourth time window are distributed based on the first cycle, the current time period corresponds to the current first cycle, and the current first cycle is related to one or more of the following information: the initial value of the first cycle; the maximum load of the first cell where the terminal device is located; the load threshold of the first cell where the terminal device is located; the current load of the first cell where the terminal device is located.

[0259] Optionally, the current first cycle is Among them, T1 represents the initial value, N max represents the maximum load or load threshold, and N represents the current load.

[0260] Optionally, the configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: for determining a reference time point of the first time window; for determining an offset of the first time window; one or more candidate durations of the first time window.

[0261] Optionally, the reference time point includes one of the following: the sending time of the first information; the receiving time of the first response; the starting time or the ending time of the second time window.

[0262] Optionally, the configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between the reception time of the first response and the start time of the first time window; the duration of the first time window; the end time of the first time window; the start time of the second time window; and the end time of the second time window.

[0263] Optionally, the first response includes a first control signaling, which is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, and the first SIB1 transmission timing is a SIB1 transmission timing that is closest to the reception time of the first response in the first time window.

[0264] Optionally, the first response does not include the first control signaling, and the first response is used to indicate a third offset between the reception time of the first response and the first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

[0265] Optionally, the terminal device is one of multiple terminal devices, and the third offset corresponding to any terminal device among the multiple terminal devices is determined based on at least one of the following information: the location of any terminal device; the service type of any terminal device; the resources of any terminal device; the network configuration of the first cell where the multiple terminal devices are located.

[0266] Optionally, the sending unit 1210 is further used to send second information after sending the first information, and the second information is also used to request SIB1; wherein the transmission power of the second information is greater than or equal to the transmission power of the first information.

[0267] Optionally, the first information and the second information belong to multiple information of the terminal device requesting SIB1, and the sending period of at least two information with later sending time among the multiple information is smaller than the sending period of at least two information with earlier sending time.

[0268] Fig.13 1300 is a schematic block diagram of another device for wireless communication according to an embodiment of the present application. The device 1300 may be any network device described above. Fig.13 The illustrated apparatus 1300 includes a receiving unit 1310 and a sending unit 1320 .

[0269] The receiving unit 1310 may be configured to receive first information, where the first information is used by the terminal device to request SIB1.

[0270] Sending unit 1320 can be used to send a first control signaling within a first time window; wherein the first control signaling is used to instruct the terminal device to receive SIB1, and the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

[0271] Optionally, the first response is associated with the second time window, and parameters of the first time window are determined based on parameters of the second time window.

[0272] Optionally, the first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used for the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used for the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

[0273] Optionally, the first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

[0274] Optionally, the start time of the third time window is earlier than the start time of the third time window, and / or the end time of the third time window is not later than the start time of the third time window.

[0275] Optionally, the one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

[0276] Optionally, the network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

[0277] Optionally, the number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the third time window is determined according to a network load in a current period.

[0278] Optionally, multiple candidate SIB1 transmission opportunities in the fourth time window are distributed based on the first cycle, the current time period corresponds to the current first cycle, and the current first cycle is related to one or more of the following information: the initial value of the first cycle; the maximum load of the first cell where the terminal device is located; the load threshold of the first cell where the terminal device is located; the current load of the first cell where the terminal device is located.

[0279] Optionally, the current first cycle is Among them, T1 represents the initial value, N max represents the maximum load or load threshold, and N represents the current load.

[0280] Optionally, the configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: for determining a reference time point of the first time window; for determining an offset of the first time window; one or more candidate durations of the first time window.

[0281] Optionally, the reference time point includes one of the following: the sending time of the first information; the receiving time of the first response; the starting time or the ending time of the second time window.

[0282] Optionally, the configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between the reception time of the first response and the start time of the first time window; the duration of the first time window; the end time of the first time window; the start time of the second time window; and the end time of the second time window.

[0283] Optionally, the first response includes a first control signaling, which is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, and the first SIB1 transmission timing is a SIB1 transmission timing that is closest to the reception time of the first response in the first time window.

[0284] Optionally, the first response does not include the first control signaling, and the first response is used to indicate a third offset between the reception time of the first response and the first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

[0285] Optionally, the terminal device is one of multiple terminal devices, and the third offset corresponding to any terminal device among the multiple terminal devices is determined based on at least one of the following information: the location of any terminal device; the service type of any terminal device; the resources of any terminal device; the network configuration of the first cell where the multiple terminal devices are located.

[0286] Optionally, the receiving unit 1310 is further used to receive second information after receiving the first information, and the second information is further used to request SIB1; wherein the transmission power of the second information is greater than or equal to the transmission power of the first information.

[0287] Optionally, the first information and the second information belong to multiple information of the terminal device requesting SIB1, and the sending period of at least two information with later sending time among the multiple information is smaller than the sending period of at least two information with earlier sending time.

[0288] Fig.14 Shown is a schematic diagram of the structure of a communication device according to an embodiment of the present application. Fig.14 The dotted line in the figure indicates that the unit or module is optional. The device 1400 can be used to implement the method described in the above method embodiment. The device 1400 can be a chip, a terminal device or a network device.

[0289] The device 1400 may include one or more processors 1410. The processor 1410 may support the device 1400 to implement the method described in the foregoing method embodiment. The processor 1410 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0290] The apparatus 1400 may further include one or more memories 1420. The memory 1420 stores a program, which can be executed by the processor 1410, so that the processor 1410 executes the method described in the above method embodiment. The memory 1420 may be independent of the processor 1410 or integrated in the processor 1410.

[0291] The apparatus 1400 may further include a transceiver 1430. The processor 1410 may communicate with other devices or chips through the transceiver 1430. For example, the processor 1410 may transmit and receive data with other devices or chips through the transceiver 1430.

[0292] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal device or a network device provided in the present application, and the program enables a computer to execute the method performed by the terminal device or the network device in each embodiment of the present application.

[0293] The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or a data center that includes one or more available media. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a digital video disc (DVD)), or a semiconductor medium (e.g., a solid state disk (SSD)).

[0294] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal device or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device or network device in each embodiment of the present application.

[0295] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions can be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center.

[0296] The embodiment of the present application also provides a computer program. The computer program can be applied to the terminal device or network device provided in the embodiment of the present application, and the computer program enables a computer to execute the method executed by the terminal device or network device in each embodiment of the present application.

[0297] The terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0298] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association relationship between A and B.

[0299] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0300] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a terminal device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0301] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0302] In the embodiments of the present application, determining B based on A does not mean determining B based only on A, but B can also be determined based on A and / or other information. In the embodiments of the present application, the term "and / or" is only a description of the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0303] In the embodiments of the present application, the sequence numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0304] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0305] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0306] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0307] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method for wireless communication, characterized in that: include: The terminal device sends first information, where the first information is used to request the network device to send a system information block SIB1; The terminal device monitors the first control signaling within a first time window; The first control signaling is used to instruct the terminal device to receive the SIB1, the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

2. The method according to claim 1, characterized in that The first response is associated with a second time window, and parameters of the first time window are determined based on parameters of the second time window.

3. The method according to claim 2, characterized in that The first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used by the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used by the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

4. The method according to any one of claims 1 to 3, characterized in that The first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

5. The method according to claim 4, characterized in that The start time of the fourth time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window.

6. The method according to claim 4 or 5, characterized in that: The one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

7. The method according to any one of claims 4 to 6, characterized in that: The network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among the multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

8. The method according to any one of claims 4 to 7, characterized in that: The number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to a network load in a current period.

9. The method according to claim 8, characterized in that The plurality of candidate SIB1 transmission opportunities in the fourth time window are distributed based on a first period, the current period corresponds to a current first period, and the current first period is related to one or more of the following information: an initial value of the first cycle; The maximum load of the first cell where the terminal device is located; A load threshold of the first cell where the terminal device is located; The current load of the first cell where the terminal device is located.

10. The method according to claim 9, characterized in that The current first cycle is Wherein, T1 represents the initial value, N max represents the maximum load or the load threshold, and N represents the current load.

11. The method according to any one of claims 1 to 10, characterized in that The configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: used to determine a reference time point of the first time window; Used to determine the offset of the first time window; One or more candidate durations of the first time window.

12. The method according to claim 11, characterized in that The reference time point includes one of the following: The sending time of the first information; a time at which the first response is received; The start time or end time of the second time window.

13. The method according to any one of claims 1 to 10, characterized in that The configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between a time at which the first response is received and a start time of the first time window; the duration of the first time window; The end time of the first time window; The start time of the second time window; The end time of the second time window.

14. The method according to any one of claims 1 to 13, characterized in that The first response includes the first control signaling, where the first control signaling is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, where the first SIB1 transmission timing is a SIB1 transmission timing within the first time window that is closest to a reception time of the first response.

15. The method according to any one of claims 1 to 13, characterized in that The first response does not include the first control signaling, and the first response is used to indicate a third offset between a reception time of the first response and a first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

16. The method according to claim 15, characterized in that The terminal device is one of a plurality of terminal devices, and the third offset corresponding to any one of the plurality of terminal devices is determined according to at least one of the following information: The location of any terminal device; The service type of any terminal device; Resources of any terminal device; The network configuration of the first cell where the multiple terminal devices are located.

17. The method according to any one of claims 1 to 16, characterized in that After the terminal device sends the first information, the method further includes: The terminal device sends second information, where the second information is also used to request the SIB1; The transmission power of the second information is greater than or equal to the transmission power of the first information.

18. The method according to claim 17, characterized in that The first information and the second information belong to a plurality of information for requesting the SIB1 by the terminal device, and a sending period of at least two information with a later sending time among the plurality of information is smaller than a sending period of at least two information with an earlier sending time.

19. A method for wireless communication, characterized in that: include: The network device receives first information, where the first information is used by the terminal device to request a system information block SIB1; The network device sends a first control signaling within a first time window; The first control signaling is used to instruct the terminal device to receive the SIB1, the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

20. The method according to claim 19, characterized in that The first response is associated with a second time window, and parameters of the first time window are determined based on parameters of the second time window.

21. The method according to claim 20, characterized in that The first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used by the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used by the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

22. The method according to any one of claims 19 to 21, characterized in that The first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

23. The method according to claim 22, characterized in that The start time of the fourth time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window.

24. The method according to claim 22 or 23, characterized in that The one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

25. The method according to any one of claims 22 to 24, characterized in that The network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among the multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

26. The method according to any one of claims 22 to 25, characterized in that The number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to a network load in a current period.

27. The method according to claim 26, characterized in that The plurality of candidate SIB1 transmission opportunities in the fourth time window are distributed based on a first period, the current period corresponds to a current first period, and the current first period is related to one or more of the following information: an initial value of the first cycle; The maximum load of the first cell where the terminal device is located; A load threshold of the first cell where the terminal device is located; The current load of the first cell where the terminal device is located.

28. The method according to claim 27, characterized in that The current first cycle is Wherein, T1 represents the initial value, N max represents the maximum load or the load threshold, and N represents the current load.

29. The method according to any one of claims 19 to 28, characterized in that The configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: used to determine a reference time point of the first time window; Used to determine the offset of the first time window; One or more candidate durations of the first time window.

30. The method according to claim 29, characterized in that The reference time point includes one of the following: The sending time of the first information; a time at which the first response is received; The start time or end time of the second time window.

31. The method according to any one of claims 19 to 28, characterized in that The configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between a time at which the first response is received and a start time of the first time window; the duration of the first time window; The end time of the first time window; The start time of the second time window; The end time of the second time window.

32. The method according to any one of claims 19 to 31, characterized in that The first response includes the first control signaling, where the first control signaling is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, where the first SIB1 transmission timing is a SIB1 transmission timing within the first time window that is closest to a reception time of the first response.

33. The method according to any one of claims 19 to 31, characterized in that The first response does not include the first control signaling, and the first response is used to indicate a third offset between a reception time of the first response and a first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

34. The method according to claim 33, characterized in that The terminal device is one of a plurality of terminal devices, and the third offset corresponding to any one of the plurality of terminal devices is determined according to at least one of the following information: The location of any terminal device; The service type of any terminal device; Resources of any terminal device; The network configuration of the first cell where the multiple terminal devices are located.

35. The method according to any one of claims 19 to 34, characterized in that After the network device receives the first information, the method further includes: The network device receives second information, where the second information is also used to request the SIB1; The transmission power of the second information is greater than or equal to the transmission power of the first information.

36. The method according to claim 35, characterized in that The first information and the second information belong to a plurality of information for requesting the SIB1 by the terminal device, and a sending period of at least two information with a later sending time among the plurality of information is smaller than a sending period of at least two information with an earlier sending time.

37. A device for wireless communication, characterized in that: The device is a terminal device, and the device includes: A sending unit, configured to send first information, wherein the first information is used to request a network device to send a system information block SIB1; A receiving unit, configured to monitor a first control signaling within a first time window; The first control signaling is used to instruct the terminal device to receive the SIB1, the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

38. The device according to claim 37, characterized in that The first response is associated with a second time window, and parameters of the first time window are determined based on parameters of the second time window.

39. The device according to claim 38, characterized in that The first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used by the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used by the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

40. The device according to any one of claims 37 to 39, characterized in that The first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

41. The device according to claim 40, characterized in that The start time of the fourth time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window.

42. The device according to claim 40 or 41, characterized in that The one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

43. The device according to any one of claims 40 to 42, characterized in that The network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among the multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

44. The device according to any one of claims 40 to 43, characterized in that The number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to a network load in a current period.

45. The device according to claim 44, characterized in that The multiple candidate SIB1 transmission opportunities in the third time window are distributed based on a first period, the current period corresponds to a current first period, and the current first period is related to one or more of the following information: an initial value of the first cycle; The maximum load of the first cell where the terminal device is located; A load threshold of the first cell where the terminal device is located; The current load of the first cell where the terminal device is located.

46. ​​The device according to claim 45, characterized in that The current first cycle is Wherein, T1 represents the initial value, N max represents the maximum load or the load threshold, and N represents the current load.

47. The device according to any one of claims 37 to 46, characterized in that The configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: used to determine a reference time point of the first time window; Used to determine the offset of the first time window; One or more candidate durations of the first time window.

48. The device according to claim 47, characterized in that The reference time point includes one of the following: The sending time of the first information; a time at which the first response is received; The start time or end time of the second time window.

49. The device according to any one of claims 37 to 46, characterized in that The configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between a time at which the first response is received and a start time of the first time window; the duration of the first time window; The end time of the first time window; The start time of the second time window; The end time of the second time window.

50. The device according to any one of claims 37 to 49, characterized in that The first response includes the first control signaling, where the first control signaling is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, where the first SIB1 transmission timing is a SIB1 transmission timing within the first time window that is closest to a reception time of the first response.

51. The device according to any one of claims 37 to 49, characterized in that The first response does not include the first control signaling, and the first response is used to indicate a third offset between a reception time of the first response and a first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

52. The device according to claim 51, characterized in that The terminal device is one of a plurality of terminal devices, and the third offset corresponding to any one of the plurality of terminal devices is determined according to at least one of the following information: The location of any terminal device; The service type of any terminal device; Resources of any terminal device; The network configuration of the first cell where the multiple terminal devices are located.

53. The device according to any one of claims 37 to 52, characterized in that The sending unit is also used for: After sending the first information, sending second information, where the second information is also used to request the SIB1; The transmission power of the second information is greater than or equal to the transmission power of the first information.

54. The device according to claim 53, characterized in that The first information and the second information belong to a plurality of information for requesting the SIB1 by the terminal device, and a sending period of at least two information with a later sending time among the plurality of information is smaller than a sending period of at least two information with an earlier sending time.

55. An apparatus for wireless communication, characterized in that: The device is a network device, and the device includes: A receiving unit, configured to receive first information, where the first information is used by a terminal device to request a system information block SIB1; A sending unit, configured to send a first control signaling within a first time window; The first control signaling is used to instruct the terminal device to receive the SIB1, the configuration parameters of the first time window are carried in the configuration information of the first information and / or the first response, and the first response is the feedback of the network device for the first information.

56. The device according to claim 55, characterized in that The first response is associated with a second time window, and parameters of the first time window are determined based on parameters of the second time window.

57. The device according to claim 56, characterized in that The first response belongs to multiple responses sent by the network device within the second time window; the multiple responses are used by the network device to feedback multiple SIB1 requests sent by the terminal device, or the multiple responses are used by the network device to feedback multiple SIB1 requests sent by multiple terminal devices including the terminal device.

58. The device according to any one of claims 55 to 57, characterized in that The first time window includes a third time window and / or a fourth time window, the third time window includes one or more SIB1 transmission opportunities, and the fourth time window includes one or more candidate SIB1 transmission opportunities.

59. The device according to claim 58, characterized in that The start time of the fourth time window is earlier than the start time of the third time window, and / or the end time of the fourth time window is not later than the start time of the third time window.

60. The device according to claim 58 or 59, characterized in that The one or more candidate SIB1 transmission timings include a first candidate SIB1 transmission timing, and whether the first candidate SIB1 transmission timing is activated is determined according to a first activation condition, and the first activation condition is related to the service priority and / or service demand of the terminal device.

61. The device according to any one of claims 58 to 60, characterized in that The network device corresponds to a first cell, the terminal device is one of multiple terminal devices requesting SIB1 in the first cell, and the number of activated candidate SIB1 transmission opportunities among the multiple candidate SIB1 transmission opportunities is determined according to the number of the multiple terminal devices.

62. The device according to any one of claims 58 to 61, characterized in that The number of candidate SIB1 transmission opportunities included in the fourth time window is preconfigured, or the number of candidate SIB1 transmission opportunities included in the fourth time window is determined according to a network load in a current period.

63. The device according to claim 62, characterized in that The plurality of candidate SIB1 transmission opportunities in the fourth time window are distributed based on a first period, the current period corresponds to a current first period, and the current first period is related to one or more of the following information: an initial value of the first cycle; The maximum load of the first cell where the terminal device is located; A load threshold of the first cell where the terminal device is located; The current load of the first cell where the terminal device is located.

64. The device according to claim 63, characterized in that The current first cycle is Wherein, T1 represents the initial value, N max represents the maximum load or the load threshold, and N represents the current load.

65. The device according to any one of claims 55 to 64, characterized in that The configuration parameters of the first time window are carried in the configuration information of the first information, and the configuration parameters of the first time window are associated with at least one of the following information: used to determine a reference time point of the first time window; Used to determine the offset of the first time window; One or more candidate durations of the first time window.

66. The device according to claim 65, characterized in that The reference time point includes one of the following: The sending time of the first information; a time at which the first response is received; The start time or end time of the second time window.

67. The device according to any one of claims 55 to 64, characterized in that The configuration parameters of the first time window are carried in the first response, and the configuration parameters of the first time window are associated with at least one of the following information: a first offset between a time at which the first response is received and a start time of the first time window; the duration of the first time window; The end time of the first time window; The start time of the second time window; The end time of the second time window.

68. The device according to any one of claims 55 to 67, characterized in that The first response includes the first control signaling, where the first control signaling is used to indicate a second offset between a reception time of the first response and a first SIB1 transmission timing, where the first SIB1 transmission timing is a SIB1 transmission timing within the first time window that is closest to a reception time of the first response.

69. The device according to any one of claims 55 to 67, characterized in that The first response does not include the first control signaling, and the first response is used to indicate a third offset between a reception time of the first response and a first monitoring opportunity, and the first monitoring opportunity is a time within the first time window for the terminal device to monitor the first control signaling.

70. The device according to claim 69, characterized in that The terminal device is one of a plurality of terminal devices, and the third offset corresponding to any one of the plurality of terminal devices is determined according to at least one of the following information: The location of any terminal device; The service type of any terminal device; Resources of any terminal device; The network configuration of the first cell where the multiple terminal devices are located.

71. The device according to any one of claims 55 to 70, characterized in that The receiving unit is also used for: After receiving the first information, receiving second information, where the second information is also used to request the SIB1; The transmission power of the second information is greater than or equal to the transmission power of the first information.

72. The device according to claim 71, characterized in that The first information and the second information belong to a plurality of information for requesting the SIB1 by the terminal device, and a sending period of at least two information with a later sending time among the plurality of information is smaller than a sending period of at least two information with an earlier sending time.

73. A communication device, characterized in that: It comprises a memory and a processor, wherein the memory is used to store a program, and the processor is used to call the program in the memory to execute the method as described in any one of claims 1-36.

74. A device, characterized in that Comprising a processor, configured to call a program from a memory to execute a method as claimed in any one of claims 1 to 36.

75. A chip, characterized in that: It comprises a processor, which is used to call a program from a memory, so that a device equipped with the chip executes a method as described in any one of claims 1 to 36.

76. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1 to 36.

77. A computer program product, characterized in that The method comprises a program which causes a computer to execute the method according to any one of claims 1 to 36.

78. A computer program, characterized in that The computer program enables a computer to execute the method according to any one of claims 1 to 36.

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